Vulcanizing apparatus



. .AULD.

VUL G APPARA PLlcATloN FILED ,1919. REN

' atented Nom 30, 1920.

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Hugh *JY m5/wy.

'ApplieationledAugustl 25, 1919, Serial No. 319,528. Renewed October resident of Boston,

fou-Iran STATES PATENT f ori-uca.

Buen Borsari-Lum); or Bos'roN, mnssacnusnr'rs, AssIGNon 'ro 'moms I.. mms, s

n OF BOSTON, MASACHUBETT vULcAmZING APPARATUS.

'i To allaite/:att erbacee-"nfv I, HUG-H R. Amaya,V

Be it known that subject of the Dominion of- Canada, and a inthecounty of uffolk and Commonwealth of Massahusetta have invented certain new and useful Im-` provements in Vulcamzing Apparatus, of

which the following is a specification..

The object of this invention is the effecting of certain improvements in vulcaniz- -ing apparatus for the inner tubes of pneu.

matic tires, as hereinafter set forth, and

illustrated inthe accompanying drawings,

in which Figure 1 is a perspective view of apparatus embodying my improvements. Fi .2 is a cross section'thereof on a larger' sca e. Fig. 3 is a sectional view of the pressure block,

The reference character .1..designates an elongated receptacle having a hat top 2, designedto be partially filled with water, as through a funnel 3 closed by a cock 4,' which water is to be heated by means of a gas burner 5 shownl in^F ig. 2, or by other suitable means. A pressure gage 6 shows when the steam pressure within the receptacle reaches a predeterminedheight, and yof a selves attached attemperature suitable for the: w,1`.ulcanizing l purposes desired: A'safety'valve and whistle 7 serves to give warning of undue pressure and to relieve the same whentheat- '.tendants are elsewherej Behind"` and above the wilcanizingl surlface 2 and suitably 'spacedftherefrom,4 is

a rail 9 over which the tires can be thrown when parts thereof are being repaired,. the posts 10 supportm'gthe'rail andbeing them.-V

ce taclel.

o the bacl of the receptacle areatta'ched several standards 11 each having-pivoted to its upper end\a lever larm 12, and`tapped through the rear end ofjeaehlever arm 1s a set screw 13 havingan operative' .handwheel toward the vulcanizingv 14, the end of which set screw abuts against an armr 15 projecting from the'standardll. 'l

By suitably turning this set screw, the' sprin Y 17 raises-.each lever arm whenthe setv screw*v is turned backward.

- I "l TheA operation of the machine isas fol'- lows: Suiicient heatl having been applied tofthe water in the receptacle to give suf- Speciiication of Letters Patent.

'ofthe receptacle, as at 23, and to their lower ends tov4 the reheated surface, a standard bearing'- a fixed relationship with respect to 'said surface, an arm rigldly'projecting vfrom said standarda lever armpivotally supported by said- '.-standard, 'and a lever` arm and the arm -projectmg from the 'standard forpressing the nose of the lever varm'. toward said heated surface.

A i,"l'llcanizing lappmratus comprising a vheated surfece a standard attached therei is lforced down L surfacej2.' A' leaf from away from Ysaid pivoted at an" intermediate point' to said over the heated.. surface, anda set screw tapped throng opposite end of the lever arm and abutting Patented Nov. 30,1920.

`7, 1920. Aserial No. 415,395:

hcient steam pressure therein to provide the required vulcanizing heat to the surface 2,

the rubber article, as an inner tube 20, to

which a patch has beenapplied suitably coated with rubber cement, is laid upon the surface 2, and a hot block 21 placed over the patch beneath the nose 22 of a lever arm 12. Then the set screw 13 is revolved until the block 21 is pressedupon the patch with to have the receptacle 1 elongated and to provide it with several lever arms 12 in order. that severalarticles can be vlucanized simultaneously. At one end I prefer to have the surface 2 project somewhat beyond the end provide this shelf 23 with a slot or notch 24, in order that when a patch is to be applied to the inner tube close to 'its valve tube, the lat- 'ter can be permitted to hang through the' slot while the block 21 and the lever arm 12l are operative over it. Y I preferto havethe pressure block 21.V cupped, -as shown in Fig. 3, and filled with a yielding pad 25, preferabl soft rubber projecting there om, ize the ressure.

What claim is: "1.A vulcanizing apparatus comprising a to Yequalset screw engaging said .tof 'above the level'- thereof, the' standard'fhaving en arm rojecting there-- standard to' presentits nose h .the

composed'4 of Y su we, a lever arm against the ard.

3. A vulcanizin .apparatus comprising a heating chamber avinga flat top surface, said surface projecting a short distance beyond the chamber to form a shelf, said shelf having a slot therein, and means for applyarm projecting from the stand-y ing a pressure `upon said shelf.

4;. A vulcanizing apparatus comprising an elongated receptacle for Water having a flat elongated top surface, means for heating the contents of said receptacle, a valve-controlled funnel, a pressure gage and a safety valve all connected with said receptacle, a i

plurality of pressure-applying arms pivot- 15 ally connected vwith said receptacle at its back, and a vrail supported above the level of said parts.

5. A vulcanizing equipment comprising va heated supporting surface, a pressure apply- 201 ing means, and pressure block consisting of a cupped blockhaving a body of yielding material therein and projecting therefrom. In testimony that I claim the foregoing invention, I have hereunto set my hand this 25 14th day of August, 1919.'

HUGH ROBERT AULD. 

